All lamps have some form of lumen depreciation.
400w metal halide lamp lumens.
This is the amount of light that is produced the first time the lamp is turned on.
A metal halide mh lamp is an electrical lamp or bulb that produces light by creating an electric arc combining a gaseous mixture of vaporized mercury and various metal compounds bromine or iodine.
Pulse start mh lamps require a ballast the produces a high voltage starting pulse.
Shop for sylvania 64490 400w bt37 metalarc 4000k metal halide bulbs.
Most large fixtures use metal halide bulbs.
The reality is that they come in a large variety of options.
Commonly a 250watt 400 watt or 1000 watt.
A new metal halide bulb can get almost 100 lumens to watt.
What is hard to cross in is that metal halides actually start out at very high efficiencies.
Mogul screw e39 lumens.
The initial lumens for a 400w metal halide lamp is approximately 36 000.
First we ll take a look at the average stats of a typical 400 watt metal halide bulb.
However a white paper by the dark sky society rated the mean lumens for a 400w metal halide to be 20 500 lumens and the life expectancy to be around 15 000 hours.
If a metal halide bulb has 18 000 initial lumens the loss accounted for reflected lumens drops the lumen output to around 12 600 lumens.
A type of high intensity discharge hid lamp this light is typically used in high bay lighting fixtures in warehouses parking lots and hangars because of their high lumen output.
It replaces traditional metal halide bulb that produces a light output of 36 000 lumens and using 400 watt of electricity.
The table below compare the lumen and lighting efficiency of the metal halide and led lighting products on amazon.
Metal halide lamp 400w bulb.
The feit electric 400 watt e39 mogul base 4200k metal halide hid lamp light is an ed28 shape for your industrial retail high or low bays and parking lots.
A better gauge for the lumen output of a particular lamp is the mean lumens.
Philips part 27449 8.